I admire your intent, but you've picked the wrong target for this kind of critique.
Nat seems to be achieving the opposite of what you say you're concerned about.
The point of these videos is to educate people how easy and affordable it is to eat fresh, nutritious and tasty food at home.
He's attracted millions of views before any mainstream media outlets have given him any attention, and he's done it by being quirkily entertaining, as well good natured and encouraging to his viewers (exemplified by lines like “Just have a go, you’re more talented than you realise”).
The only thing he's swearily abusive towards is lowest-common-denominator, anti-nutritious, big-corporate-commoditized food.
Earlier videos that have attracted a lot of views involve highlighting the absurdity of conspicuous largesse (luxury boat shows) and masculine hooliganism (e.g., burnouts in cars).
These seem like the very things that would be most associated with the style of politics you're most concerned about.
Yep he has tattoos and swears, but from what I can see he's only trying to raise society's standards, not lower them.
Sometimes it takes a trojan horse to get the payload to its target.